rail vehicle

Abstract

The invention provides a rail car which comprises a car body. The car body comprises a bottom frame, side walls welded to the two sides of the bottom frame, end walls welded to the ends of the side walls and a car roof welded onto the side walls and the end walls; the bottom frame is provided with a sleeper beam used for being connected with a bogie, and wheel covers used for installing seats arearranged above the position, corresponding to wheels of the bogie, in the car body; the bottom frame, the side walls, the end walls, the car roof and the sleeper beam are all formed by hollow extrudedaluminum alloy profiles, and the wheel covers are respectively adhered to the bottom frame, the sleeper beam and the side walls through elastic structural glue, so that the reliable connection between the wheel covers and a main structure of the car body is achieved, and certain elastic buffering is achieved at the connecting positions between the wheel covers and the main structure of the car body so as to adapt to the deformation of the car body under vertical loads; and the structural strength of the connection positions is improved, and the connection positions between the wheel covers and the car body have higher fatigue strength.

Description

technical field [0001] The invention relates to the technical field of rail vehicles, in particular to a rail vehicle. Background technique [0002] A tram is a light rail vehicle driven by electricity and running on a track. Trams can be basically divided into three types according to the marshalling type and bogie arrangement: single type, floating type and articulated type. Among them, the single vehicle is characterized by a shorter car body, and there is a bogie under each car, which is located in the middle of the car body. [0003] The car body of the single-model tramcar in the prior art mainly includes: an underframe, side walls welded on both sides of the underframe, an end wall welded on the ends of the side walls, and a roof welded above the side walls and end walls, The underframe has a corbel for connecting the bogie, and a wheel cover is arranged above the wheel corresponding to the bogie in the car body, and a seat is installed on the wheel cover. Among th...

AI Technical Summary

Problems solved by technology

[0004] However, since the wheel housings of the prior art are respectively connected to the underframe, the bolster, and the side wall by welding, the structural strength of the joints is poor, and it is easy to cause fractures due to metal fatigue, which reduces the weight of the car body. service life

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